Abstract: There is provided a gondola apparatus including: a horizontal front scaffold frame facing a back of a blade; first and second side scaffold frames each horizontally movably attached to the front scaffold frame; a stabilizing member attached over both sides of the front scaffold frame such that the stabilizing member is extendable and contractable, the stabilizing member abutting on an outer surface of a tower; a first lifting device provided to the front scaffold frame; second and third lifting devices attached to the first and second side scaffold frames, respectively, such that the second and third lifting devices are rockable; first and second drive devices provided to the front scaffold frame, the first and second drive devices being configured to horizontally drive the first and second side scaffold frames, respectively; and first, second, third traction ropes provided between the first, second, and third lifting devices, and an origin on a side of a nacelle, respectively.

Abstract: There is provided a gondola apparatus including: a horizontal front scaffold frame facing a back of a blade; first and second side scaffold frames each horizontally movably attached to the front scaffold frame; a stabilizing member attached over both sides of the front scaffold frame such that the stabilizing member is extendable and contractable, the stabilizing member abutting on an outer surface of a tower; a first lifting device provided to the front scaffold frame; second and third lifting devices attached to the first and second side scaffold frames, respectively, such that the second and third lifting devices are rockable; first and second drive devices provided to the front scaffold frame, the first and second drive devices being configured to horizontally drive the first and second side scaffold frames, respectively; and first, second, third traction ropes provided between the first, second, and third lifting devices, and an origin on a side of a nacelle, respectively.

Abstract: A device for raising aquarium fish is a combination of a water tank and a receptacle assembly. The water tank has an upper opening, a lid for closing the upper opening and provided with an illumination mechanism and a filtration mechanism, and a fastening portion. The receptacle assembly is for supplying electricity to the illumination and filtration mechanisms and has a fastened portion for engagement with the fastening portion of the water tank.

Abstract: An electrical receptacle unit includes at least one receptacle body (3) internally provided with a pair of slotted terminals (4) for insertion of a pair of blades (L) of a load-side electrical plug (P), a thermistor (7) encased in a protective tube (9) outwardly projectable from between the slotted terminals (4) of the receptacle body (3), a coil spring (13) for projecting the thermistor (7) out from the receptacle body (3), a relay (14) for enabling and disabling supply of electric power to the slotted terminals (4), a control circuit (19) which operates the relay (14) to cut off supply of electric power to the slotted terminals (4) when the temperature of the thermistor (7) reaches or exceeds a preset temperature, and a buzzer (23) operated by an output signal produced by the control circuit (19) when the temperature of the thermistor (7) reaches or exceeds the preset temperature.

Abstract: A device for raising aquarium fish is a combination of a water tank and a receptacle assembly (4). The water tank has an upper opening, a lid for closing the upper opening and provided with an illumination mechanism and a filtration mechanism (3), and a fastening portion at notch (3c). The receptacle assembly is for supplying electricity to the illumination and filtration mechanisms and has a fastened portion for engagement with the fastening portion of the water tank.

Abstract: An illuminator for an aquarium tank including a tank body and a lid member mounted on the tank body is accommodated in the lid member. The illuminator includes a base plate, a light source attached to the base plate, a translucent cover for covering the light source and protecting it from waterdrops. The cover is provided with a plurality of fastened members and a plurality of resilient fastening members are provided on the base plate for detachably engaging the fastened members.

Abstract: A filter for an aquarium apparatus includes a filter tank casing, a filter unit accommodated in the filter tank casing for filtering water from a tank and returning filtered water thereto, a water pool section for collecting water from the tank and supplying water overflowing therefrom directly to a filter material of the filter unit. The filter unit physically and biologically filters water from the tank and returns filtered water thereto.